Engine-turning machine



April 10, 1928.. 1,665,372

F. J". KRISTOFEK ET AL ENGINE" TURNING MAcHiNE Filed March 24. 1923 l2 Sheets-Sheet 1 $011k Kris Zo/ek a/zer enson A ril lo, 192s. 1,665,372

F. J. KRISTOFEK ET AL ENGINE TURNING MACHINE Filed March 24, 1923 12 Sheets-Sheet s i 3 z anft J/(nlsto/ek P 1;VenZ0rs -%/fe (YT-Be April 10, 1928.

F. J. KRISTOFEK ET AL ,ENGINE TURNING MACHINE Filed March 24. 1923 i ln vehtozs:

12 Sheets-Sheet 4 April 10, 1928. I

F. J. KRISTOFEK ET AL ENGINE TURNING MACHINE Filed March 24. 1923 12 Sheets-Sheet 5 m w W m .sm 0 n3 o J k K 4 a 0. Q z: r J m a f 4 E n 7 g L. 5;."- x. W 70 h+- mp OQQ i .m n a 0 m2 I I- B. m

as 3. mm Q12 N2 02 so 2.

' 1,665,372 F. J. KRISTOFEK ET AL ENGINE TURNING'MAOHINE Filed March'24, 1923 1,2 Sheets-Sheet 6 enson I K 1 I I 1 ttorney A ril 10, 1928. I

F. J. KRISTOFEK ET AL ENGINE TURNING MACHINE Filed March 24, 1923 12 Sheets-Sheet 7 April 10, 1928; 1,665,372

. Y F. J. KRISTOFEK ET, AL

ENGINE TURNIING MACHINE Filed March 24, 1923 12 Sheets-Sheet 8 Fig. 12

April 10, 1928. 1,665,372

' F. J. KRISTOFEK ET AL ENGINE TURNING MACHINE Filed March 24, 1923 12 Sheets-Sheet 9 65 59 36 April .10, 1928; 1,665,372

F. J. KRISTOFEK' ET AL ENGINE TURNING MACHINE Filed March 24, 1923 12 Sheets-Sheet 10 Fig; 16

Fig. 12 I77 2! I76 2 36 mm m um 20 E 96 99 I78. l3 I5 94 I Q 98 l4 r-\ 7 1/ x HIHHHHIHHHI fnflezztoz'sx $012k gab/alt alter enson April 10, 1928.

F. J. KRISTOFEK ET AL ENGINE TURNING MACHINE Filed March 24, 1923 12 Sheets-Sheet 11 [12 Van 20 2'5.-

April 10, 1928.

F. .J. KRISTOFEK ET AL ENGINE TURNING MACHINE l2 Sheets-Sheet 12 Filed March 24. 1923 z ank m z'sa ofek 6 Z I w L.

f zventors:

Patented Apr. 10, 1928,

a I T FRANK J KRIsToFEK Ann WALTFQni; Benson; oa sqn rzi ut, istz q nsomm'esilibasI T BROWN &:B1GELOW; OF ST; PAUL,

so rA.

MmNnso'Ta, A CORPOItATIONcOE Miiiifimeaemmieamaa Madam-E3" f Our invention ielates to engihe "tufning machines designed to applyfan' o'rnamenta tion to cylindrical surfaces such as pencils and fountain pen barrels Our machine is 5 j cleeig necl' to opeiate autfoin'altical'ly afterl the ai ticlejs to be chased" are 'set' in position in the same.

A r featuire of theifnventionr sid in means for holding a sei'i'e s of barrels which are en- 'gine turned simultaneously with the same :clesign so that eachfancl every bar'r'el' when V ti ansferrecl or engraved on to thebari'eLsun f ac' e ithoutany'attention of the operatoi,

being automaticin each operation and coni-j ing' to'a stop automatically when the design is completed upon the pencil barrel; 1

The construction of our 7 engine turning machine is'of a slmple nature and is so. designed that the timlng mechanism rotates the barrel or articlesbeing engine turned by the stroke of the diamond pointsso as' to .peianit a series of clear distinct'individual marks to beformed in the article being engine tui neolinj 'acco dancewith the design carried the maste plate so that when the clesignf -is completed upon the ai ticle' 1being-"engineturneclallof marks Will be uniform and 1 clearly perceptible. The

timing mechanism is ar ra nge cl so that it be adjusted for different articles which it may be desirable toengine turn in oui ma chine adapting-oniengine] turningmachine merits."

I The structure of opeia'tioii of travel ofthe diamond, points is adjustable so that articles of different length the tlia-monolpoints. I

Ina machineof this-nature it -clesii'able 'to provide suclrmechanism as, will, operate continuously after being startedgtocomplete design" upon one or more" articles-atthe barrels or surfaces of the article sheld-therei'atoi' can, aftei" becoming starting of the; machlne, operate it n I .i (t. 1

the seljf s ame U "perceivable difference in the designs .ancl theseclustered .porti ns spaced 1 engine turned fin a manner to make fa ye'ry article ineail's off ngineturnin claims to point out the a 'ranfgementiof parts :fiO articles of difli'erentcylindrical me ure- PI FifiQKt v I plan'fvieit' ofour3ei1gmet5.. canbe engineturnecl to v apply the desiredornamentationby simple Y and effective adjustment 0i imeans-control ling the starting-and releasing operation of 1 same time anmto permit any nuinbe1 o f M articles to be 'deco'ratecloi engine turned with the s'elf-samedsign so that 'e'j'acli" and every made is practically, identical iin u pearance when finished. Some engine mm ing machineshave been madewhichi-are' op e'r'atecl to enginetnrn the design-upon the T in, but inmany of .thesemachines it -i'snecessa ty {on the operator to closely and cafefully observe. the operation "of the-machine ancl to count the spacing of thilfma'i'ksfeaoh M time and If the operator should] 'Iiiakela' 651v mistake in counting I the designf'alnfa ficle Uni EOi'm Witli the; design fleshed and" it ould-be reacl'ily ap fen't' upon the "atticle. Inoure'ngin'etulning maehine a1 eration'sjaf'e' autom andfaifu "'skill e'clfofir fa i1 he invention 'ncludes' ahjl escapement I mecha ism which operates auto mati'eallyiso h d s aeif an. be? lng 'n'ej t rii d 1 1 articles. With the 1 n"a1'"ks clustered a M H ap in uniform relation about the article being a ra tiveld i c r xiinam efiqni11 1 t v Figure-5is .sectiofi'afel too a Figure 6 is an enlarged detail of a portion of the timing mechanism. t Figure 7 is a plan View of that port on illustrated in Figure '6. i

Figure 8 is a sectional View on line 8-8 of Figure 7 I I Figure 9 1s a back V ew of Figure on Figure 10 is a section on the line 10-10 of Figure 1.

' -Figure 11 is an enlarged detail of a portion of the engine turning machine.

I Figure 12 is an enlarged detail on the line 12 -12 of Figure 11. v

Figure 13 is an enlarged idetail illustrating the adjustment of the 'operatingengine turnmg diamonds,

i i Figure 14 is adetail of the shaft andbearyings adapteduto carry diamonds of the of Figure 14, I I-Figure 16 is a planyiew. of a portion of pf Figure i19.

Figure 16,

machine. I

I Figure 15 1s a sect on on the line 1515 the machine.

Figure 17 Figure-18 1sa plan view of a portion of the machine illustrating-a shifting mechanism for the master pattern plate. I Figure 19 is an enlarged detail of a porti0 n of the mechanism in Figure 18. 1 V

Figure 20is'a section on the line 20%20 Figure 211s a back elevation of that por tion ofthe machineillustrated in Figure 18.

Figure .22 is a detail elevation of a portion of the controlling mechanism of the I machine.

of Figure 26. I I I Figure 28 illustrates a pattern' developed sign in Figure 28.

otF igureSl.

Figure23 is a plan View of the-parts illustrated in Figure 22. I I y I Figure 241 is an enlarged plan view of a portion of the operating mechanism ofthe machine.

I i Figure 25 is a section on the line 25-25 of Figure24a Figure 261s an enlarged detailof a per-.-

t'i'on o'f the shiftingmeans for the diamond points. on the line 26 26 of Figure 1.

Figure 27 is a section onv the line 27- -27 in plane of a .designengine tij rned by our machine.

l .Figure 29is plan'view of the i'nasterj .55 I

patterniplate segments used'to make the de- Figure 30 is a side elevation of Figure 29.

Figure .31illustrates' another formfo'f the timing operating mechanism. v

. Figur'e 32 is a sectionalong thejline32 32 Figure 33 isan enlarged detail of apor- Y tion of the operatingmechanism Figure 34 is'an enlarged section on the line 34- 34 of Figure 11.

is a section on the line 7, 1 7 of I Figure 35 isanenlarged detail of the ribbon connection used on the engine turning machlne. I

Figure 36 is an enlarged sectionald'etail of the trip for the operating mechanism.

Inthe drawings our engine turning machine A is illustrated designed particularly to engine turning pencil barrels or tubular articles'so as to. engrave a fanciful design upon the surface of the same.

I Our engine turning machine A is entirely automatic after the articles. are inserted in the same andthemachine is started so that the operator after starting the machine does not need to count the operations as has usually been done in engine turning machines of this nature heretoforeibut at the proper I time when the engine turning is complete the machine automatically'stops ready for operation and in position to receive a new series of articles atterthose which have been completed are removed. r I a Thecngine turning machine A is formed with means 1B for holding a series of diamond points for engraving or engine turnmg a series ofartlcles simultaneously with thefsame design, which [meansfis supported upon the bed or frame 10 in} manner so that'it can'be 'r'eciprocated 'back'and forth to'perform the functions rcquired' suitable timing mechanism'C is mount-' ed upon the bed 10 of the machine A and is being engine turned between "the reciprocating movementsof the engraving or engine turning means 13. I I I The master pattern plate D in the engine turning machine A is provided with a releasing-mechanism E which 'includes a suitzible releasingcam to control the shifting of the design plate in the operation of the machine while engine turning in one direction.

In the machine A the engravingfmeans B is made up of a horizontally exte'nding shaft v 11 which is supported on its ends i'nthe bearings 12, free to berotated withina limit of operation. The shaft-'ll'carries a'series of supporting membersjld which hold the diamond points 14 l in operating position; "Thesupportingmembers 13 are freely journale'd on the shaft 11 butare held so as'to only move a limiteddistanc'e in, rotation by recesses 16 in the shaft 11. The 'keys 15 operate within recesses 17 formed in thead- I jac'e'nt edges of the members 13; as illustrated in Figure 14 and Figure 15. The recesses 17 formed in the-members 13 are'l slightly greater than the size'of the'keys 15 seats to permit free movement of the members '13, which support the diamond points 14 so that when the diamond points 14- are means of the keys1'5.wl'1ich are. inserted in.

brought into engagement with a pencil barrel Feach' diamond point 14:- is free, withina i certain limit of movement, to adjust itselt to' engage-"the surface of the'pencil barrel in'a manner to engrave the-surtaceduring the] operation of the machine A. The diamond points 14 are supported within the members 18 which are adjustably held by-means'ofxthe screws 19 in the :forward end Of' the members 13'. The members 13 are placed adjacent each'other along the shaft 11' so that one pin; or key can engage two of the members 13 to form a stop or limit of movement of the same.

The diamond points 14: are held in operating position under the tension of the springs 20.which-. bear against the members 13 and 'thetension of which is adjusted by nieans of the thumbscrews 21 and heldin position by the lock nuts 22.

Th erange of freemoveinent of the mem bers 13' is controlled at all times by the 'keys15 which allowthe members 13 to'move in proportion to the spaces'or recesses 17,.

- The operation ofth'e'diamondv points 1'4:

'into engagement with" thepencil' barrels]? is controlled by. means of the master 'p'zittern plate I) which is positoned on the bed 10' of the machine A and the diamonds 14B are raisedaway from the pencils F or brought into contact with the same by raising or lowering the diamonds which are controlled bythe master plate engagin'g member 231-01 tracing finger which is formed with atapered engaging point 24 that comes in direct contact with the formation or design. 25

i formed on the master plate D. The-tracing finger, 23fis jou'rnaledinthe supporting member 26' which is connected. by means of the adjuStingsCreW 27 to the-member 28 and the member 29. Themember. 29 is pivotally connectedto' the member 23 which con- 1 stitutes the lifting. pin and'the member 28' is pivotally connected to the member 30 which member is keyedto the sh'attll. The

adjusting screwi27 is interposed between the v I members 28and 29 and is formed with right f lengthening. and shorteningj adjustment between the master, pat-tern .plate and diamond and leftflhand threads so as to provide the points 14.

I The 'ou'rnal bearings which support [the shaft 11-.are carried by the member 31, (see Figure 11-) above the carriage frame I lock nuts 2 2,;are supported by the horizontally. extending frame member 36 whichis supported on its ends by the shaftllso that" 'trat'ed in" Figure .36pwhich releasing pin or catch 19 [The catchil9is the "means for' i e'a'ch' of v the diajustment The maohinelk the drive pul- 'liiOIllClfIJOlIltS is spaced above th'eqsame in a r position Where" 1t istreely a-ccessible (foram lCYBTiVlllCll operat-esfthe shaftr38 to' operate the ,gear"39- which meshes withrtho gear 40 carried: freely onthe shaft d1 which extends parallel to and just backot' the shaft 38 and each of the shafts are held in suitable jour -y nals upon the bed10o'fthe machine A." :The gear lO is connected with a clutch 42 of ordinary wellknown construction which, when tripped into 0p'erat1on,-w1ll operate the shaft 11. The; clutch/42 can ,be thrown out; to stop the operationsof the machineA when it is desired; thus allowing the operating pulley.37to continue to"operate together i Wl'tl'lthe connecting gears. 39 and 40; v

The clutch eerie thrown into and out of operationby the link 43 which is provided with an operating handle l' extending. from the lever arm 45. The arm 45 is. pivoted at v 16, AStlltflblQfCOll spring ll tendsrto hold thelever 45 andoperating'link 43 inbackwith a cam operatii'ig"surface 48, La's inns,

operated by the rodwhich is connected;

operating position. I

i The carriage 32 forth by' means 7 I which is connected ononejen'd to the crank arn1"55 at""56,,theiarm being connected ward position. lheilever -45 is provided engages with the r I with the foot operating treadlehl and 'heldinto engagementwith the'cam-48 by the coil spring 52. When the operating lever) A4: is: moved into forwardfposition" the 511149. fwill' engage against thezshoulderb adja cent Zone edge'fotf'the cam operatin'gsurt'ace lSjto hold the handleAA and levei' /lh'out'of 3 's reciproc'atedbackjand of the connecting link 54 tovtlie-shaft ll'andoperated therebyf The other end of the link 5' r-is iv0m11y connect:-

. ed 'to' the carriage; 32at 57 an'dwhen the shaft elis rotated link 5 lfwill beloperatcd by the crank jarm 55to reciprocate the carriagei32'back andf forth: "The arm 54L is providedwithan ad ust1ng'nutn58 which-is interposed between the' ends of the same and forms an adjusting means for lengthening or shortening'thearm 54. Thismeans'of adjustment- "permits. changing ofv the posi-- tion of the cai'ri age'j 32 in its reciprocation as clearly illustrated in Figure'lO o'f-the riage 32 the' diamonclpoints "l lare carried back and 'forth and mfniovement inone d1- re'ction are held in engaging position with the pencil barrels F. The cross bar 36 which carries the adjusting means 21 for the diaspring v 59, one end I of which" engages i the mon'd points 14 is' held by thetensi'on of the cross member 36 andthe other end" engages the "car'ri' age 32, as illustrated in Figure-13."

drawings; In the reciprocation of the can 1 position. The teeth 127 aresmaller in height thanthe teeth 12330 that the operating dog I ,l23'canpass over the teeth 127 when it is desired and yet engage with the teeth128. The different heights of these teeth represent different spaces between the lines to be engraved on the pencil barrels. I k h A pairof cam members 131 and 132 are adjustably held upon the shaft 117 by means of the segment 133 exending below-the wheel 126'andformed with a slot through which the lock nut 134 extendsto hold the [cam 131 in the desired position. I The cam 131 is formedlwithits projecting surface-135' ex .tendingbeyond the periphery of the toothed wheel126 sufiiciently so as to clear the engaging pointiof theteeth 127 whilertheflcam surface 136 ofthe cam 132 extendsbeyond pthe engagingperipheryof the-teeth 128 so as 123 1 out of engagement with the teeth'128 in. the back stroke of the, pawl and when tohold the operating end of the pawl or dog set to engage the teeth 127. A set screw 137 is adapted tosetvthe cams 131 and132 in relation to each other, as is illustrated in Fig ure 8],.so; that the projecting portion 138 3 held out ofengagement with either one i ofj p the setsof teeth, 127 and 128 for that "por-j tioneof the stroke orjmovement of, the dog formed on the pawl 123, as illustrated in Figure 7, will engage withthe surfaces 135 and 136 throughout a portion; of the move, ment of the pawl 123, so thatthe. pawl 123 is 123 in the operation of the machine A. The

adjustment of the teeth on the wheel 126 A permits them to be set so asfto-be engaged at the desired moment. The'ztoothi wheel K 124 and the pawl 122 are provided with a cam member similar. to. the cam 131 with the same adjustmentand having the cam surface 139. which is positioned so astoengage thepawl 122 to hold it offof the teeth in a similar manner. as thepawl 123 is held off of the teeth of the wheel 126, excepting thewheel 124 has only one cam surface as- .sociated with the operating pawl.

The toothed wheels 124 and 126 are open;

' ated in unison at all times so that the wheel -124'takes care of the individual lines tobe engraved or engine turned onthe pencil barrels, while the wheel 126 takes care of the blank. space between the lines of the pattern being. engine turnedon theipencils. T'ofa-v cilitate the operation-of the wheels124 and 126; together without any lost motion, we provide a pairiofconnecting'metal belts 140 and.141 which have their ends secured. to the wheels 142 and 143 fast on the shafts115 and 1117. respectively.-- The belts 140 and 141 are .arrangedso that the belt 140 normally eX-' tends overthe top of the wheels- 142 and 143 and the bBliIl'drIBXiGIlClS-OVQI the bottom ofthe wheels respectively; This construction possible lost motion and connects the shafts 115 and 117- provides means'to eliminate all to operate in unison. YThewheels 142 and 143 are formed with suflicient width on their i belt n a g surface to permit the belts, 140 and 141 to be positioned adjacent and iii-par V allel' relationto' each other; The wheel 143 is divided intotwo parts 144 and 145. The

part 144 carries oneendof the belt 140,.

whilethe part 145 carries the end of. the belt 141 and the part 144 is keyed, in the-ordinary manner, to the shaft 117, while the part145 is freely 'rotat-able thereon; The members 144and 145 of'the wheel 143 areconnected together bythe adjusting screw 146,which engages the lug147 formed on the part 145 and the lug 148 extends through the/slot 149 in the part 145 andis secured to the part 144. The locking screw'f150: which operates in the slot 151 locksthe two members 144 and 145 together. vThis .ad-

justment permits the slack to be taken out of f the belts 140 and 141 and to draw them tight enough to insure no p'erceivable-amount of lost motion by the shafts 115 ,and 117.

Each of the jpawls, 122 and 123, are pro vided with an extensionwhich is adapted to be engaged by the ends of thecross member 152, which is adjustably held inthe connecting link 119. The cross member 152 is op-, erated by the handle153 and is held in set position in thelink 119 by'the'set screw 154. WVhen it is desired to set the timing mech: anism into starting position, after it "has completed its movement, to time the'rotation of the pencil barrels to a completerevolution journals so as to position .it toone 'side and beneath the shaft 115, andit isconnected with the shaft 115 by means of the [gear 157 which is mounted on the shaft 156 and the pinion 158, which-ismounted upon the. shaft 115 so thatwhen theqhandle 155 is turned then the shaft 115 is also rotated and the shaft 117 operates in: unison therewithby virtue of the connecting belts140 and 141.

Nearthe rear endof the shaft 156 a belt Wheel 159 is secured to the shaft and this wheel carries themetal belt 160 which con-f nects to one end of the rack 99. The other end of the rack 99 is engaged by-the metal belt 161 which issecured to the vwheel 162, which is keyed on the jack shaft 163 on the other side of the rack 99, as illustrated in Figure 1 of-the drawings. The shaft 163 is supported in the bearings 164 which are 1 metal beltfl168. The belts .166 and 168 are) connected bythe link 169 which'is' provided Withan adjustingfnut- 17 0,ha'ving the right- 1 and-left hand thread so as totake up the' belts connected tof the rack bar 99, namely,

secured to the projectingiportion of thebase or bed'of; the machine A.- The shaft 156 has' keyed thereto another beltflwheel 165,

back of the wheel-159 to which'is secured the metal belt1'66, while the shaft 163 has keyed thereto a belt wheel 167 which carries the slack in thebelts 160, 161,- 166 and 168. The

160 and 161 extend over the top of the wheels thewheels 165 and 167 so that when the nut 170 is adjusted the s'laclrbetween the belts and connecting parts is taken up to the eX- 159 and 162, while the beltmembers 166 and 168 are positioned diametrically opposite on tent so thatlthere will be practically little or no 'lostm'otion in the rotation of the shafts nielnt-with the pencil barrels. The movement of' 'the barrels is governed by the timing, ineans'C; The wheel 121"move's the barrels the space of a lineat a time andthe wheel 126 adapted to move the barrel any space fron'i whichit is set 'which is more than a pencils F. 'nlsni C operates During the operation'ofthe timing mecha-i ni'snrC- by the shaft 71 through the operating lever 112th'e shafts' '115 and 117; are rotated and the shaft 1561s rotated through'the pin.- ion 15,8 and the gear 157." As the shaft 156 is'rotated the rack bar 99-Wi1l beoperated in the direction of-"i'ot-ation' of the shaft'and thereby rotate the'pinions 98 together with v the engaging plugs '9-1Ywhich will rotate the throughlthe belts 160,161, 166 and 168, to-

gether with the connected parts and the rack e as f 99 rotate the pencil barrels F the desired degree' between each forward movement :of the carriage 32 andthe diamond points 1 1.

fThe movement of the" pencil] barrels is timed sons to take place at the time when ithefcarriage 32 is at its backward position,

just before the carriage'moves. forward and the diamonds 14 arereleasedinto engages single line. This construction permits a patternto 7 he" ong-inc turned upon the surface of the pencil barre1s, as is illustrated in Flgure 28, with the lines. clustered togetherrand designs can be readily s aced' longitudinally apart; "By the. varie ation of the master pattern plate different the'pencillbarrels F. a i 7 In Figures 31 and 32 e have illustrated: a variation of the construction of theiwheel 126 by the Wheel 171, which is keyed 'tothe slfaft 117 in the same manner asthewheel 126." In this construction thewheel' 17lsis made in two parts, na1nely"172and' 173;

which are secured together by the: adjusting bolts-174." The mmberna constitutes the portion of the wheel171 which is keyed t'oQ 1n this'manner the timing mecha to rotate the shaft 156 and ngine turned upon theshaft 117, while the member'172carries slots 17 '5 thetwomembers:172 andf17f3cah theteeth 127 and'l281 are set rigidlyfinlthe run ofthe member 172 and are not ,tlfle locking bolts 174; andib yfmeans of the held, as is illustratedin the,construotiono f 172 and 173.

'l, he cross member 36 which ca-rriesthe Ed: I V justing, screws, for the diamonds 14;, asillusp trated in Figures 16 and 17 and the shaft 11 with the members 13 are held inaddition to the springs 59 which, are. illustrated in 'the Wheel126.{ Ihe-adjustmentofthe'teethj held in "this construction is accomplishe'dj through the-bolts 17 1 and the ,two niembeifs, Q

Figure 13, bythe spring 176 which enga e the luge;177 on the member 36 and;'- the other end is supported by the brachet178 which, extends from and is; sejc'uredto;theicarria-ge 32. A suitable'adjusting means179 is provided for the spring 176 so asto ai-rang r y 1 the, proper tensionof the spring,

In Figure 35 he; connectionof the-ends ofthe metal belt 161 V ani wt hir d f 9:9.is illustrated. .1 v p I The master-pattern plate I) is held slidable upon the bed plate. 10 of; ;the ,1na9hin A so a I that t can b hif rtnsvrsafi? emlt Qli tudinally in relation to the pencil; barrel s F or other articles held ;in the machine; A. In

" the rdraivingin Figure 5 wehave illustrated a means for shiftingthe, patternlplatefD transvers'e of the-pencil barrels F, Inthis construction the supporting, frame 180 V for the masterpattern plate D is slidably secured on the base 10=andis drawn-in one direction by 'the coil. springlSl, Thejother side ofthe supporting" frame 180 is connected by means.

of the rod182fw-ith a cam engaging bar 183,

the end ofwhich engagesthe notehe 18;}, in A thecain 185;

The cam 185 is adjustably securedto the collar 186 which is keyed to the shaft 1 56 so as to operate therewith during the operation of the machine A.

In theoperation of the;1naehinefAlthe end 24; of the pin rides over/the master plateD. Theraised.port ons on the 1nas ter plate I) causethe pin 28to raisefthe diamond points 14 off of thesurface of the pencil barrelsyEand thus form a-brolgen' longigtudinal line along the pencil barrel;v 1

.It' is desirable tohavef the end 2 1 of the pin eaen age the surface of the;- plate; "D where protrusions suclras 25 are formed with as 'broad aehearing aspossiblefthrougly out h f mation of. th slmki pat ern the, barrels lhii is a -ce pl ih f 1- lowing the e d-2 Qt? th fl ie enet gradually becomes less and less While the pin24 stays'in the same relative position until the cam 1855s moved into a position central along the surfaces 25 of the; master plate. The cam185 is gradually turned each time aline' is engraved on the pencil barrel so that the engagement of the bar 183 with the notches 184 ofthe. cam 185 to release thecam engaging end of -the bar 183 into a different notch 184 at which time themaster plate D is shifted in a-position' so as-to cause the end of the pin 23 to engage ina differentsurface in" the master plate. This action is timed so as to take place when the carriage 32 is at the position where the barrels are shifted orrotated as hereinbefore. described and is accomplished automatically and momentarily so thatbe-- fore the carriage 32'n1ovesso that the-pin 23 engages theinaster plate, the master plate has shifted to the, new positionfby the actionof the Team 185and the spring 181' and the desired' design is transferred onto the barrels F. This construction minim zes the. wear on the pin 23 and gives a posltive automafia action h l'aocomplishesthe desired results; I I I \Vhen the has been transferred tothe barrels Frit is necessary to reset the master plate into start-j ing position. This :is accomplished by en- 'gagingthe handle187 and drawing the bar 183 over until "the spring eatch188 engages in the notch 1 89.f0rmed in the bar 183 andclearlyillustrated in Figures 24 and 25. The spring catch 188holdsthe cam engaging end of the barl183out of. engagement and clear of the 'cam 185 so that when the timin mechanism is reset as hereinbefore described and the shaft 156 is rotated in its backward direction thecam 185. is set into starting position after. which the catch 188 is released: which allows the cam-engaging end-of the bar 183to come in contact, at

the, starting point, with the'cam 185. i a

Inmaking certain patterns it is desirable to move the master plate D in a longitudinal direction in relat-ionto the articles F held inlthemachine A each time a line is made.

bythe diamond points 14. This is accom$- plished by our shifting mechanism'which is illustrated inFigures 18to 21 of the draw lugs, In this constructionthemaster 'plate D is held by the compression springs 19.0

with the locating pm 191, which is supported to the frame 180 of the masterplate by the.

bracket 192 in engagement under the spring tension of the spring190 with the'surface oft-he notches or formations 193' in the bar 194. The bar-194 is" slidably held by the supports 195 in the bed 10 of the machine A and one end is engaged by a coil spring 196,

while the other end is secured to the metal belt 197 which is secured to a portion of I machineAis operated so that fthe entire pattern from the master plate I) 30 the wheel 162. During the operation of the 'machineA as the pencil barrels F are rotated eachtime a line is engine turned thereon, the wheel 162 moves a 5111110161113 CllS- tance to turn the pencil barrelsby meansof the rack 99 and at the 'sametimethe bar 194;- I is shifted; causingthe master plate D to move a relativeand proportionate amount movement of the masterplate D.

' The pin191 moves-gradually.from one" notclr to the other, in the course. of operation of the engraving-diainond and as the move- 1 ment is very sllghtbetween each line en graved on Itheipencil it is evidentfthat the pin 191 moves. slowly. up the ;side of the notches 193. This is clearly apparent from the enlarged detail of these-parts in Figare 19. This shifts the'linesof the pattern,

so as to give a V shapedlconfiguration or outline to the same, blltrlt must beborne in mind that the shifting of the'bar 194 is very I slight so that the pin 191 is forced gradually to the highest. point of 'the'notches 193' and then down the other side to the lowest point. I i

In the operation ofthe machine A in mak ing certain. patterns on articles F held thereunit s sometnnes desired to cause the shaft 11 which carri'es the diamond supporting member 13 to be vibrated to form a Wave line during the" extent of movement of the carriage 32.. This is accomplished in-our machine by means' of the. mechanism llus:

trated in Figures 1 26 'andi27. Figure 26 is aiview approximately ion theline 262 '6 of Figure land illustrates the serrated bar198 whichis supported by the brackets 199 tOl the bed plate 10 of the machine A. The bar 198 is engaged by theiinger pin 200 which is carried by the arm 201. The-arm 201 is pivotally connected at 202. by the supporting bracket 203- which is secured at 204 to the carriage 32 of themachine A. The arm, 201

is formed witha lug205 which extends into engagement with the ball206 wl1ich is carried by a crank arm 207 pivotally connected at 208 to the bracket 203. A- link 209 connects the crank arm 207 withthe supporting I brackets 31 which hold the journal bearings 12 forthe shaft 11'. "When the carriage 32 is moved forward the finger 200 rides-over the serrations 198 and causes the'lever 201" to operate the crank arm 207 so that the link 209-will operate: tocause the shaft 11 to I bevibrated transversally in relation to the articles F so that the diamond pointswillf form a waveline on the barrels or articles F. The supports 31 are held by the transversa'lly extending bar;210 which is slidably secured t'ransversally in the carriage 32, as? illustrated in Figures 10, 13, and 17. ,'-The, 

